47662440 has 128 divisors (see below), whose sum is σ = 170588160. Its totient is φ = 10416384.

The previous prime is 47662427. The next prime is 47662471. The reversal of 47662440 is 4426674.

47662440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18087 + ... + 20553.

It is an arithmetic number, because the mean of its divisors is an integer number (1332720).

Almost surely, 2^47662440 is an apocalyptic number.

47662440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47662440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85294080).

47662440 is an abundant number, since it is smaller than the sum of its proper divisors (122925720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47662440 is a wasteful number, since it uses less digits than its factorization.

47662440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 47662440 is about 6903.7989541991. The cubic root of 47662440 is about 362.5701869645.

The spelling of 47662440 in words is "forty-seven million, six hundred sixty-two thousand, four hundred forty".